<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <script type="module">
        import Queue from './Queue.js';

        let queue = new Queue();

        queue.enqueue('a');
        queue.enqueue('b');
        console.log(queue.toString());

        queue.enqueue('c');
        console.log(queue.toString());
        console.log(queue.size());
        console.log(queue.isEmpty());
        
        queue.dequeue();
        queue.dequeue();
        console.log(queue.toString());
    </script>
</body>
</html>